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1·Dasgupta's game theory suggested that even a successful, co-operative society is always at risk of breaking down.

达斯古普塔的博弈论表明，即使是一个成功的合作社会也往往存在崩溃的可能性。

2·Mergers, such as the combination of the UK's Co-operative Bank with Britannia building society, are helping to enlarge the ethical market.

兼并，例如英国的合作银行和不列颠建筑协会的合并帮助了加强道德的市场。

3·A few weeks's community service can make self-willed teenagers into co-operative and caring members of society.

几个星期的社区服务能使不合群的年轻人变得能与他人友好合作并能关心他人的社会成员。